| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve trouble that a worker reads and calculates the measured temperature at each measurement by incorporating a heating means and a temperature measuring means in a probe body buried in soil, and providing a means calculating and displaying the soil resistance from the measured temperature. SOLUTION: A probe body 1 driven into soil is provided with a heater 2 and a thermocouple 3 detecting the temperature of the probe body 1 by the heater 2. The base end of the probe body 1 is integrated with a pedestal 5, and the pedestal 5 is provided with the terminal 6 of the thermocouple 3 and the terminals 7 of the heater 2. The terminal 6 is connected to a temperature measurement section 8, and the terminals 7 are connected to a heating power supply 9. The temperature measurement section 8 is constituted of an input means of a set value, a means calculating the soil inherent thermal resistance from the set value and the measured temperature of the thermocouple 3, and a display means displaying the calculated result. The probe body 1 is driven, and the heater 2 is carried a current for heating. The temperature of the probe body 1 is measured for 20 min, for example, and the soil inherent thermal resistance is automatically calculated from the measured result and is displayed.</p> |
